tom friedman on why plummeting oil prices is not necessarily a good thing. bill gates and bono on attacking retirement savings. and what you should do no matter what your age for your retirement money. your life, money, and future. >>> this week, reporting from davo switzerland. they host the annual meeting of the world economic forum where leaders in business, politics, and money gather. what goes on at the meetings? that's what we're here to cover. >> they descend on the town to talk about how to improve the world. this year's theme is mastering the industrial revolution. also on the agenda, discussions of some of the biggest challenges affecting the world including terrorism and income inequality inequality. it is by invitation only. it includes 40 heads of state like david cameron, high pro chairman and ceo jamie dimon. leading the delegation is joe biden and john kerry. the world economic forum is sometimes criticized for the secrecy around the event. also, parties that give attendees a chance to mingle and have fun and get to know each ore. >> oil pric

you get the tom friedmans of the world, i'll leave out donald trump here, who come back and speak about a command economy and the shiny new bullet trains. they have completely overbuilt. their infrastructure is essentially a weak one. but they have spent enormous amounts of money. they have a command economy. and the model, that was supposed to be the model that would supersede the liberal democratic capitalist model. it looks as if it's not working that well. in the short run, yes, it's obviously going to hurt our markets. and the chinese have applied a certain short-term stimulus. with this hunger for raw materials. and the spike in the price of them. and now that its demand is down, there's a collapse of the raw material prices. but in the longer run, is it not in our interests that our chief rival in the world expanding as we speak, in the south china sea and developing an enormous military and a sophisticated one, is actually may not be the locomotive that we have been afraid of? i look at this as good news in the long run. lousy news in the short run. >> all right. secretary kerry

tom ackerman, thank you very much, indeed. joining us live from brooklyn is andrew friedman. thank you for being with us. talk us through the science of why this storm is so huge and so dangerous. >> yes this storm is so huge, there is a piece of energy deep dipped in the jet stream that is carved out of this trough in the jet stream. all the way down to the gulf of mexico we had snowflakes, in the florida panhandle, seven inches of snow in georgia, places where you don't often get snow. and then this very mild atlantic fish and water from the atlantic, and it's throwing a huge amounts of moisture pumping it into cold air that has been in place over the new york city corridor, which is highly populated. >> so are the worst areas likely to be places where the power has been out for long periods of time? what are the consequences, do you think? i think we lost our guest there. that's a shame. andrew, if you can still hear us thank you for talking with us. >> four people have been killed in canada's worst school shooting in decades. you after gunning down two brothers, the shooter killed a teacher and an as